If you missed it last week, there was quite the spectacle at SF's City Hall! Hundreds of monochrome faces stared out from the face of City Hall.
Called "The Standing March," the massive projection was created by American filmmaker Darren Aronofsky and French artist JR.
The artwork features 500 people "from different backgrounds" rotating themselves 180 degrees to "remind leaders that the world is watching" as they gather to discuss climate change.
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